Daryl, You got a very good response from PD, I would only add that I'd first make sure to open up the line on the secondary fuel filter and let all the air out first. Your 207 should be much like my 188 which has a gravity feed system. I've noticed that it takes a lot of time for the fuel to eventually bleed out all the air. When I rebuilt my 188 I put everything together but left the fuel lines disconnected at the injectors. I then cranked over the engine watching for fuel on all four lines. Only took a few turns of the engine. I did not leave the valve cover off to look for oil on the rockers. Thats a good idea. I'd spin the engine till there is fuel coming out the injector lines then pull the fuel shutoff to keep from having a mess. I'd think you'd see oil on the rockers eventually, but with a new oil filter and all it may take a fair amount of cranking. You might consider purging the air out of the fuel lines, then connecting the injectors and actually starting the engine, looking for oil to make its way to the rockers within 8-10 seconds or so. Best of luck, John 1968 Case 450
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